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Open System

Arkadiusz Jadczyk

The personal Substack of Arkadiusz Jadczyk, PhD.

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Substack
PricingOnly free issuesPublishesWeekly
Issues27SubscribersRead arkadiuszjadczyk.substack.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

Exterior algebra

Geometric algebra was not born in an ivory tower; it grew out of three very human lives, each marked by faith, doubt, and an almost mystical hunger for structure.

2 months ago
17
1

Kronecker generalized deltas and Levi-Civita epsilons

My last post “It’s all about permutations” was a complete failure. Really very bad. I copied, without much thinking, some formulas from “Mathematical Handbook For Scientists And Engineers“, Granino A. Korn and Theresa M. Korn, Dover 2000, a...

2 months ago
11
0

It's all about permutations

Permutations appear whenever “things are the same, but in a different order.” That simple idea hides a powerful engine that underlies physics, geometry, information, and even the notion of identity itself.

2 months ago
22
0

Biolocation

On Tuesday, December 23, Vlad Zhigalov (see e.g. here) had a talk at the “Temporology” seminar hosted at Omsk (Western Siberia). He spoke about “biolocation” (or “dowsing”, some people use “pendulum” instead) – experimental research and the...

2 months ago
20
1

Authors

The writers behind this newsletter.

  • Arkadiusz Jadczyk

    Mathematical/theoretical physicist, PhD. http://arkadiusz-jadczyk.org/

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